摘要
目的 探讨白介素-10(IL-10)对炎症介导的多巴胺能神经元损伤的影响。方法 于中脑原代神经元-胶质培养体系中,应用脂多糖建立多巴胺能神经元损伤的炎症机制模型,IL-10(10~100ng/mL)与脂多糖(1~100ng/mL)同时处理该培养体系。免疫细胞化学法检测酪氨酸羟化酶阳性神经元的数目,液闪测定法测定多巴胺摄取力,并检测促炎症因子,包括肿瘤坏死因子-α(TNF-α)、白介素-1β(IL-1β)(ELISA法)、一氧化氮(NO)(Griess反应)和超氧化物(细胞色素C还原法)的变化。结果 IL-10(10~100ng/mL)对脂多糖(1~100ng/mL)诱导的中脑多巴胺能神经元损伤具显著的保护作用,且呈剂量依赖性;IL-10也显著降低促炎症因子TNF-α、IL-1β、NO和超氧化物的生成。结论 IL-10抑制促炎症因子生成,保护多巴胺能神经元。
Objective To explore the effect of interleukin-10 (IL-10) on inflammation-induced dopaminergic neurodegeneration. Methods A model of inflammation-induced dopaminergic neurodegeneration was established in mesencephalic neuron-glia cultures by lipopolysaccharides. The culture system was treated by both IL-10(10 -100 ng/mL) and lipopolysaccharides( 1-100 ng/mL). The number and morphology of cells were determined by tyrosine hydroxylase immunostaining. Cell bioactivity was detected by [^3 H ] DA uptake analysis. Besides, the changes of some key proinflammatory factors such as TNF-α, IL-1β (by ELISA), NO (by Griess method) and superoxide (by cytochrome C method) were examined. Results IL-10 (10-100 ng/mL) dose-dependently protected from mesencephalic dopaminergic neurodegeneration induced by lipopolysaccharides (1-100 ng/mL). Besides, IL-10 inhibited the production of TNF-α, IL-1β, NO and superoxide. Conclusion IL-10 may protect mesencephalic dopaminergic neurons by inhibiting the production of proinflammatory factors.
出处
《上海交通大学学报(医学版)》
CAS
CSCD
北大核心
2008年第5期521-524,共4页
Journal of Shanghai Jiao tong University:Medical Science
基金
国家自然科学基金(30772280)
国家重点基础研究发展计划("973"计划)项目(2006cb500706)
上海市医学领军人才项目(06003)~~